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Dragstrip and Launch Techniques Discussion 1/4 mile, 1/8 mile, launch discussions.

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Old 08-10-2013, 02:45 PM   #1
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I'm about to give up on drag racing!

I'm still having a ton of trouble getting a decent 60' time with my set-up. I'm either a poor driver/slow learner or the track prep at Silver Dollar in Reynolds, GA stinks. I have added LT headers, HF cats, cam, WCCH heads, 3600 triple disc stall, 3.91 gears and various Pedders/BMR rear suspension parts. I'm dynoing right at 480 rwhp/430 ft-lbs on a Dynajet and am running MT 305/45R18 ET Street Drag Radials. My 60' times are in the 1.9s and 2.0s depending on pressure and brake stall speed, but I'm seeing guys be in the 1.7s on Pirelli street tires on this forum. I've had the rear alignment set at zero toe and zero camber as was suggested in a former thread of mine. Needless to say I'm frustrated and about ready to have it put back to stock and forget drag racing. I'm running low 12 seconds @ 115 + MPH in the August GA Heat so I don't think it's because of a lack of power.

Anyone want to try to help me out? If you happen to be in the middle GA area I'll even let you drive it down the track to see whether it's me, the car or the track. I'll be 69 years old in 4 weeks and don't have time to be frustrated with this crap.
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Old 08-10-2013, 02:54 PM   #2
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Drop your tire pressure to 16 psi. and do a GOOD burnout and really heat them up. At your power you should easily hook and get at least a 1.8
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Old 08-10-2013, 03:18 PM   #3
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That's an easy 11 second car.

Extracting every last bit is not as easy as the seasoned veterans make it look. Keep practicing and the timeslips will begin to show it. Forget about cutting a good light, and the guy in the other lane, and concentrate on the launch.

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Old 08-10-2013, 05:00 PM   #4
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My car seems to work better foot stall at 1200rpm.
If I go higher,it spins the tire just abit,I don't here it,but I see it on the log.I have a 3400 converter and 3.45 with 17". So far, my best 60 ft is a 1.77
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Old 08-10-2013, 05:06 PM   #5
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I always leave between 1000-1100. That's yielded me the best results.
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Old 08-10-2013, 05:12 PM   #6
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Don't be hard on yourself. Track condition,location,temperatures plays a big role in timeslip.
I know some racers have to deal with tracks that the DA is about 3000+ in their coldest day.which is a good 3-4 tenth slower if you would race the same car at a track that would have a 0 DA.
You should compare to other Camaro owners in your area and what they run.
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Old 08-10-2013, 05:14 PM   #7
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I always leave between 1000-1100. That's yielded me the best results.
Yours is special.I'll race ya right now. Lol....
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Old 08-10-2013, 05:41 PM   #8
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Yours is special.I'll race ya right now. Lol....

Well, it still runs. They started it on Friday. Whats the worst that can happen....It's already broken. I'm in!!!!
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Old 08-10-2013, 06:07 PM   #9
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Quote:
Originally Posted by jbrown13 View Post
3600 triple disc stall, 3.91 gears
MT 305/45R18 ET Street Drag Radials
The combo of the 3600 and the 3.91's is going to be more difficult to hook, even on a M/T DR, due to the 4.03 first gear in the 6L trans.
What tire pressure are you running cold and hot?
What are you doing for a burnout?
What's your launch technique?
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Old 08-10-2013, 08:39 PM   #10
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if u dont do it alot , it takes time. watch most dd or true street cars at the track most will be 2.0 and worse. just have fun try diff stuff. u cant find out what works if u dont try diff stuff. what works for my car may not work for urs . same as what works for me as a driver may not work for u. keep at it tho. find someone at the track that dont care to help u . thats usally the best way to learn , having someone there with u.
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Old 08-10-2013, 09:14 PM   #11
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Drop your tire pressure to 16 psi. and do a GOOD burnout and really heat them up. At your power you should easily hook and get at least a 1.8
At 16 PSI and a good burnout I had 60' times of 1.999, 2.043 and 1.950, all at different brake stall RPMs. Spun the tires like crazy.
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Old 08-10-2013, 09:15 PM   #12
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I bet you are not getting your tires hot enough and that you are up on the converter too high when you launch. Try leaving the line right above idle. If it still spins, you need to practice fast rolling the throttle until you get better at it. Also like others said, drop your tire pressure to 16 and see how it goes.
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Old 08-10-2013, 09:17 PM   #13
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Quote:
Originally Posted by Motion427 View Post
Don't be hard on yourself. Track condition,location,temperatures plays a big role in timeslip.
I know some racers have to deal with tracks that the DA is about 3000+ in their coldest day.which is a good 3-4 tenth slower if you would race the same car at a track that would have a 0 DA.
You should compare to other Camaro owners in your area and what they run.
The problem seems to be a lack of 5th gen Camaros at the track. Friday night I was the only one there, but must have been 50 Mustangs. At least I'm beating most of them.
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Old 08-10-2013, 09:25 PM   #14
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Quote:
Originally Posted by white 2SS/RS View Post
The combo of the 3600 and the 3.91's is going to be more difficult to hook, even on a M/T DR, due to the 4.03 first gear in the 6L trans.
What tire pressure are you running cold and hot?
What are you doing for a burnout?
What's your launch technique?
I thought after I was talked into the 3.91 it was a bad decision, but I'm not willing to blame every crappy 60' time on the gear.
I tried every pressure between 15 and 19 (MT recommends 12 to 16) and left at different brake stall speeds, and my 60' times did not vary much, 1.947 to 2.043. Frankly, the rear tires felt squirrely at 15 and 16 PSI.
I'm trying to do a reasonable burnout, some smoke, but not a whiteout.
I bring the throttle up to the RPM I want to leave on w/ my left foot on the brake, and then mat the throttle and release the brake at launch.
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Old 08-10-2013, 09:27 PM   #15
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By the way, thanks guys for your suggestions.
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Old 08-10-2013, 09:33 PM   #16
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I thought after I was talked into the 3.91 it was a bad decision, but I'm not willing to blame every crappy 60' time on the gear.
Nor should you, it's just going to make it a touch more difficult...especially on a less then well prepped track.

Quote:
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I tried every pressure between 15 and 19 (MT recommends 12 to 16) and left at different brake stall speeds, and my 60' times did not vary much, 1.947 to 2.043. Frankly, the rear tires felt squirrely at 15 and 16 PSI.
How many passes do you have on the DR's? Mine took a few good burnouts and about 50 street miles before they started hooking well.

Quote:
Originally Posted by Camarojt View Post
Try leaving the line right above idle. If it still spins, you need to practice fast rolling the throttle until you get better at it.
Agreed.
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Old 08-10-2013, 10:04 PM   #17
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Wish I was closer, I'd love to help and watch you make passes with that combo.

Burnout: Next time you go out, try to go out with a buddy. Have him watch your burnouts. A problem I've had, as well a few friends, is we think we're doing a monster burnout and actually we're not getting the tires that hot. I've been focusing now on going like 5 mississippi up to 7 mississippi. I've also been doing my burnouts in manual mode though you have so much gear I'm thinking you don't have a torque problem.

Tires: Try 18 cold.

Launch: I'd try stalling it up to like 1500 and then for the first pass or two, I'd get into the gas fast but not stomp on the gas. Roll into it fast. If you spin like mad, even after a good burnout, I'd roll out even slower, just to get some decent numbers out of the car.

Track: Compare notes with other races. See what they say about how the track is working. My closest track, like on a Friday, is good for a few hours after opening but goes away by 9PM.
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Old 08-11-2013, 12:56 AM   #18
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You can "tune" the launch/60 foot if you have software or have your tuner do this via power management in the base timing map, or just get the right tire that you should have to cut a good 60 foot time. Just my 2 cents anyway. Also, one thing I hate to see, is the phrase "giving up". But, to each his own.
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Old 08-11-2013, 02:28 AM   #19
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Another thing to note is since you have added a few horses to your setup you might be doing a one tire burnout. Have someone watch for you and make sure both tires are spinning.
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Old 08-11-2013, 05:25 AM   #20
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Does anyone remove the front sway bar ? Install adjustable front shocks/struts?
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Old 08-11-2013, 07:10 AM   #21
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Do not forget the alignment. If you're set up for the street only you will not do very good strip. I bet just by changing the alignment little bit you will do much better. I know there's a vendor or two That posted a good set up for a street/strip use that won't eat your tires up.
Some cars will hook up good from the factory some will not just too much variation from the factory.
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Old 08-11-2013, 10:58 AM   #22
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Do not forget the alignment. If you're set up for the street only you will not do very good strip. I bet just by changing the alignment little bit you will do much better. I know there's a vendor or two That posted a good set up for a street/strip use that won't eat your tires up.
Some cars will hook up good from the factory some will not just too much variation from the factory.
This is the very issue that improved my 60' from 2 to 1.7 and got me to the 11 sec. You need a drag alignment front and back. I also ease into the throttle to reduce spin...launch from idle on last yellow and peddle on the floor on three count. I will be at your track when temp get cooler, I like that track. Also how long and how much practice did it take you to hit every green in regulation?!!
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Old 08-11-2013, 12:55 PM   #23
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Originally Posted by white 2SS/RS View Post
Nor should you, it's just going to make it a touch more difficult...especially on a less then well prepped track.



How many passes do you have on the DR's? Mine took a few good burnouts and about 50 street miles before they started hooking well.



Agreed.
I have about a dozen passes on the tires and about 200 street miles.

Somebody please explain "fast roll" to me.
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Old 08-11-2013, 12:58 PM   #24
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Originally Posted by mike@newera View Post
You can "tune" the launch/60 foot if you have software or have your tuner do this via power management in the base timing map, or just get the right tire that you should have to cut a good 60 foot time. Just my 2 cents anyway. Also, one thing I hate to see, is the phrase "giving up". But, to each his own.
I hate to "give up" too, but the definition of insanity is doing the same thing over and over and expecting a different result.
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Old 08-11-2013, 01:00 PM   #25
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Another thing to note is since you have added a few horses to your setup you might be doing a one tire burnout. Have someone watch for you and make sure both tires are spinning.
The rear end has the JRE Posi-mod in it, but I'm not sure that is 100% foolproof. I seem to be getting smoke from both tires.

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